Vacuum bottle



FIG. 1 is a perspective view of a vacuum bottle showing our new design;

FIG. 2 is a front view thereof, the rear view being a mirror image thereof;

FIG. 3 is a left side view thereof, the right side view being a mirror image thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 4 .

The broken lines illustrate portions of the vacuum bottle that form no part of the claimed design. 

CLAIM The ornamental design for a vacuum bottle, as shown and described. 